Finding the Fourth Proportional to 3,168,581.13, 4,372,642.98 and 1,718,276.13
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Solution
The fourth proportional to 3,168,581.13, 4,372,642.98 and 1,718,276.13 is: 2,371,221.61
Step by Step Solution
- Step 1: Write the proportion equation
3,168,581.13 : 4,372,642.98 = 1,718,276.13 : x - Step 2: Convert to fraction form
3,168,581.13/4,372,642.98 = 1,718,276.13/x - Step 3: Cross multiply
3,168,581.13x = 4,372,642.98 × 1,718,276.13 - Step 4: Simplify right side
3,168,581.13x = 7,513,408,057,546.07 - Step 5: Solve for x
x = 7,513,408,057,546.07/3,168,581.13 - Step 6: Final answer
x = 2,371,221.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.